and stephen colbert will hold the keep fear alive rally, on the same day next month. >>> now, we know the truth about what actor joaquin phoenix has been up to. you may remember phoenix's bizarre appearance on dave letterman's show last year. >> he carried on that persona in the documentary, "i'm still here." he says that joaquin has been playing a role, while telling everyone he was giving up acting in order to pursue a rap career. >> i saw that movie. i'm not surprised. >> casey said, it's the performance of his career. >>> up next, the stories we'll be following today, including a milestone for england's future king. we'll be right back. that, you know... helps regulate your digestive system. ooh, i think i'l pass. no, no, no! trust me. it is beyond tasty. mmm! wow! i can't believe it, i loe it! mmm, this is really good! new best tasting activia ever! ♪ activia / now you can join the fight against breast cancer every time you enjoy an activia. give hope with every cup of activia. so, we set out to discover the nutritional science at purina one, we want your cat to be as healthy a